JP2016512595A - 天然ガス液化方法とその装置 - Google Patents
天然ガス液化方法とその装置 Download PDFInfo
- Publication number
- JP2016512595A JP2016512595A JP2015562962A JP2015562962A JP2016512595A JP 2016512595 A JP2016512595 A JP 2016512595A JP 2015562962 A JP2015562962 A JP 2015562962A JP 2015562962 A JP2015562962 A JP 2015562962A JP 2016512595 A JP2016512595 A JP 2016512595A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- outlet
- inlet
- nitrogen
- liquefied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000003345 natural gas Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000002826 coolant Substances 0.000 claims abstract description 75
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 40
- 238000004781 supercooling Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 27
- 239000003949 liquefied natural gas Substances 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 9
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005194 fractionation Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 4
- 239000001273 butane Substances 0.000 claims description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0291—Refrigerant compression by combined gas compression and liquid pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0022—Hydrocarbons, e.g. natural gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0042—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by liquid expansion with extraction of work
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/005—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by expansion of a gaseous refrigerant stream with extraction of work
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
- F25J1/0055—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
- F25J1/007—Primary atmospheric gases, mixtures thereof
- F25J1/0072—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0211—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
- F25J1/0214—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle
- F25J1/0215—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle with one SCR cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0262—Details of the cold heat exchange system
- F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
- F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
- F25J1/0288—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings using work extraction by mechanical coupling of compression and expansion of the refrigerant, so-called companders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2220/00—Processes or apparatus involving steps for the removal of impurities
- F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
- F25J2220/64—Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
とする)の分離器の軽気体混合冷却剤用の流出口は、前記三段階の圧縮段の第i+1段階
の圧縮機の流入口に接続される。最終段階の分離器の軽気体混合冷却剤用の流出口は、前記予冷HEの第2流入口に接続される。第1段階および第2段階の分離器の重液体冷却剤用の流出口は、それぞれに、第1および第2ポンプを通過して、前記予冷HEの第3流入口に混合物を供給するために、第3段階の分離器の重液体冷却剤用の流出口と結合される。前記予冷HEの第2流出口は、前記液化HEの第2流入口に接続され、当該液化HEの第2流出口は、第2絞り弁を通じて配管冷却用の前記液化HEの流入口に接続される。前記予冷HEの第3流出口は、配管冷却用に前記予冷HE内に混合物を供給するために、第1絞り弁を通じて前記液化HEの第3流出口と結合される。前記過冷却HEの第2流出口は、窒素HEの流入口に接続され、当該窒素HEの第1および第2流出口は、それぞれに、膨張器とターボ膨張圧縮機の流入口に接続され、当該膨張器とターボ膨張圧縮機の流出口は、それぞれに、前記過冷却HEのLNG流の冷却用の流入口と第2窒素圧縮機の流入口に接続される。後者の流出口は、直列に接続された第5空気冷却器、第1窒素圧縮機および第4空気冷却器に接続され、当該第4空気冷却器流出口は、前記窒素HEの別の流入口へのHP窒素供給用である。
‐ 混合冷却剤回路と、
‐ 窒素冷却剤回路の、
2つの回路を備える。
‐ 予冷HE(1)と、
‐ 第1〜第5分離器(2,20,8,11,14)と、
‐ 第1および第2絞り弁(3,5)と、
‐ 液化HE(4)と、
‐ 混合冷却剤圧縮用の、第1〜第3圧縮機(6,9,12)と、
‐ 第1〜第5空気冷却器(7,10,13,23,25)と、
‐ 第1および第2ポンプ(15,16)と、
‐ 液体膨張器(19)と、
‐ 過冷却HE(17)と、
‐ 窒素HE(18)と、
‐ 作動用膨張器(21)と圧縮機(22)を備えるターボ膨張器装置と、
‐ 2つの窒素圧縮機(24,26)と、
‐ 分別装置(27)と、
‐ LNG貯蔵タンク(28)の、
各機器と各ブロックを備える。
Claims (2)
- 天然ガス液化方法であって、
前処理済乾燥ガスが、予冷熱交換器において、摂氏マイナス52〜マイナス54度の間の範囲の温度まで冷却され、そして、濃縮され、
それから、分別目的用に供給される液状エタンの留分を除去することによって、前記前処理済乾燥ガスは分離され、そして、第1分離器からのガス流が、液化熱交換器において摂氏マイナス120〜マイナス125度まで引き続いて冷却され、
過冷却熱交換器において摂氏マイナス150〜マイナス160度まで、気体窒素によって冷却され、
過冷却された液化天然ガスの圧力が、液体膨張器において0.11〜0.13MPaになるまで低下させられ、
そして、前記過冷却された液化天然ガスは分離目的で供給され、そしてそれから、液化天然ガス貯蔵タンクに供給され、
分離されたガスは燃料ガス系に送られ、
前記予冷熱交換器からの、窒素、メタン、エタン、プロパン、ブタンおよびペンタンを包含する混合冷却剤は3.0〜3.1MPaになるまで圧縮され、摂氏26〜30度に冷却され、そして、重液体冷却剤と軽気体冷却剤に分離され、
前記重液体冷却剤は、直前の分離器からの重液体冷却剤と混和するために吸い出され、
重液体混合冷却剤と軽気体混合冷却剤は、重混合冷却剤と軽混合冷却剤の低圧混合対向流の投入によって摂氏マイナス52〜マイナス54度まで冷却されるために供給され、
それから、前記重液体混合冷却剤は前記予冷熱交換器において過冷却され、0.25〜0.27MPaになるまでスロットルで調整され、そして、前記予冷熱交換器の配管を冷却するために、前記液化熱交換器からの前記軽混合冷却剤と共に供給され、
前記軽混合冷却剤は、前記予冷熱交換器と前記液化熱交換器において、濃縮され、そして引き続いて過冷却され、
前記液化熱交換器の流出口において生じた過冷却された液化軽混合冷却剤は0.25〜0.27MPaになるまでスロットルで調整され、それから、前記液化熱交換器の配管を冷却するために供給され、
窒素熱交換器からの低圧気体窒素はターボ膨張圧縮機において1.2〜1.4MPaになるまで、そして、各窒素圧縮機において3.5〜3.7MPaになるまで圧縮され、そして続けて、各空気冷却器において摂氏26〜30度まで、そして、窒素熱交換器において低圧窒素冷却剤対向流を通じて摂氏マイナス107〜マイナス109度まで冷却され、
そしてそれから、窒素は、膨張器において0.8〜1.0MPaになるまで膨張され、液化天然ガス流を冷却するために過冷却熱交換器に送られ、窒素熱交換器において高圧窒素によって摂氏22〜24度まで加熱され、そして、ターボ膨張圧縮機吸込み口に帰還することを特徴とする天然ガス液化方法。 - 請求項1記載の方法の実施のために使用される装置であって、
予冷熱交換器と、5つの分離器と、2つの絞り弁と、液化熱交換器と、混合冷却剤を圧縮するための3つの圧縮器と、5つの空気冷却器と、2つのポンプと、液体膨張器と、過冷却熱交換器と、作動用膨張器(21)と圧縮機(22)を備えるターボ膨張器装置と、2つの窒素圧縮機と、を備え、
前記予冷熱交換器の流入口は、天然ガスの取り込み用であり、
当該予冷熱交換器の第1流出口は第1分離器の流入口に接続され、
当該第1分離器のガス流出口は液化熱交換器の第1流入口に接続され、
当該液化熱交換器の第1流出口は前記過冷却熱交換器の流入口に接続され、
当該過冷却熱交換器の第1流出口は前記液体膨張器を経由して第2分離器の流入口に接続され、
当該第2分離器の分離ガス流出口は燃料ガス系への送り出し用であり、
そして、前記第2分離器の液化ガス流出口は液化天然ガス貯蔵タンクに接続され、
前記第1分離器の液状エタン流出口は分別装置の流入口に接続され、
前記予冷熱交換器の混合冷却剤流出口は第1圧縮機の流入口に接続され、
当該第1圧縮機の流出口は空気冷却器の流入口に接続され、
当該空気冷却器は重液体冷却剤流と軽気体混合冷却剤流を生じる分離器の流入口に接続され、
上述の第1圧縮機、空気冷却器、および分離器は、少なくとも三段階の圧縮段の、第1段階を構成し、当該各圧縮段は全段階が同一であるとし、
i=1,2として、第i段階の分離器の軽気体混合冷却剤用の流出口は、前記三段階の圧縮段の第i+1段階の圧縮機の流入口に接続されるものとし、
最終段階の分離器の軽気体混合冷却剤用の流出口は、前記予冷熱交換器の第2流入口に接続され、
第1段階および第2段階の分離器の重液体冷却剤用の流出口は、それぞれに、第1および第2ポンプを通過して、前記予冷熱交換器の第3流入口に混合物を供給するために、第3段階の分離器の重液体冷却剤用の流出口と結合され
前記予冷熱交換器の第2流出口は、前記液化熱交換器の第2流入口に接続され、
前記液化熱交換器の第2流出口は、第2絞り弁を通じて前記液化熱交換器の配管冷却用の流入口に接続され
前記予冷熱交換器の第3流出口は、前記予冷熱交換器内に配管冷却用に混合物を供給するために、第1絞り弁を通じて前記液化熱交換器の第3流出口と結合され、
前記過冷却熱交換器の第2流出口は、窒素熱交換器の流入口に接続され、
当該窒素熱交換器の第1および第2流出口は、それぞれに、膨張器とターボ膨張圧縮機の流入口に接続され、
当該膨張器とターボ膨張圧縮機の流出口は、それぞれに、前記過冷却熱交換器の液化天然ガス流の冷却用の流入口と第2窒素圧縮機の流入口に接続され、
そして、後者の流出口は、直列に接続された第5空気冷却器、第1窒素圧縮機および第4空気冷却器に接続され、
当該第4空気冷却器の流出口は、前記窒素熱交換器の別の流入口への高圧窒素供給用であることを特徴とする装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013149401 | 2013-11-07 | ||
RU2013149401/06A RU2538192C1 (ru) | 2013-11-07 | 2013-11-07 | Способ сжижения природного газа и установка для его осуществления |
PCT/RU2013/001177 WO2015069138A2 (en) | 2013-11-07 | 2013-12-27 | Natural gas liquefaction method and unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016512595A true JP2016512595A (ja) | 2016-04-28 |
JP6093457B2 JP6093457B2 (ja) | 2017-03-08 |
Family
ID=50877640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015562962A Active JP6093457B2 (ja) | 2013-11-07 | 2013-12-27 | 天然ガス液化方法とその装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6093457B2 (ja) |
CN (1) | CN105102913B (ja) |
RU (1) | RU2538192C1 (ja) |
WO (1) | WO2015069138A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106500459A (zh) * | 2016-10-28 | 2017-03-15 | 银川天佳能源科技股份有限公司 | 一种应用于天然气深冷液化领域的混合制冷工艺 |
KR20190120776A (ko) * | 2017-03-16 | 2019-10-24 | 퍼블리크노에 악치오네르노에 옵스체스트보 “노바텍” | 에탄에 의한 사전 냉각 및 질소에 의한 보조 냉각으로 고압 사이클에서 천연가스를 액화시키기 위한 극지 캐스케이드 방법 및 그의 실시를 위한 플랜트 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015002822A1 (de) * | 2015-03-05 | 2016-09-08 | Linde Aktiengesellschaft | Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion |
FR3045798A1 (fr) * | 2015-12-17 | 2017-06-23 | Engie | Procede hybride de liquefaction d'un gaz combustible et installation pour sa mise en œuvre |
CN107228525A (zh) * | 2016-03-25 | 2017-10-03 | 王建基 | 油田天然气混合冷剂制冷天然气液化工艺技术和稳定混合烃回收工艺技术 |
RU2623021C1 (ru) * | 2016-09-16 | 2017-06-21 | Публичное акционерное общество криогенного машиностроения (ПАО "Криогенмаш") | Способ ожижения природного газа |
CN106839648A (zh) * | 2017-02-24 | 2017-06-13 | 杨皓 | 一种乙烯装置火炬气回收工艺 |
RU2656068C1 (ru) * | 2017-07-06 | 2018-06-01 | Юрий Васильевич Белоусов | Способ сжижения природного газа на газораспределительной станции и установка для его осуществления |
US10753676B2 (en) * | 2017-09-28 | 2020-08-25 | Air Products And Chemicals, Inc. | Multiple pressure mixed refrigerant cooling process |
RU2758362C1 (ru) * | 2021-03-10 | 2021-10-28 | Андрей Владиславович Курочкин | Установка комплексной подготовки газа с повышенным извлечением газового конденсата и выработкой сжиженного природного газа |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58153075A (ja) * | 1982-02-18 | 1983-09-10 | エア−・プロダクツ・アンド・ケミカルス・インコ−ポレ−テツド | メタン−リツチガス流の冷却及び液化方法 |
JPH09506392A (ja) * | 1994-10-05 | 1997-06-24 | アンスティテュ フランセ デュ ペトロル | 天然ガスの液化のための方法と設備 |
US6094937A (en) * | 1996-07-01 | 2000-08-01 | Den Norske Stats Oljeselskap A.S. | Process, plant and overall system for handling and treating a hydrocarbon gas from a petroleum deposit |
JP2012083051A (ja) * | 2010-10-13 | 2012-04-26 | Mitsubishi Heavy Ind Ltd | 液化方法、液化装置およびこれを備える浮体式液化ガス製造設備 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPM485694A0 (en) * | 1994-04-05 | 1994-04-28 | Bhp Petroleum Pty. Ltd. | Liquefaction process |
BRPI0607453A2 (pt) * | 2005-02-17 | 2010-04-06 | Shell Int Research | instalação para a liquefação de gás natural, e, método para a liquefação de uma corrente de gás natural |
RU2344359C1 (ru) * | 2007-07-04 | 2009-01-20 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий-ВНИИГАЗ" | Способ сжижения газа на шельфе или побережье арктических морей |
RU2344360C1 (ru) * | 2007-07-04 | 2009-01-20 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий-ВНИИГАЗ" | Способ сжижения газа и установка для его осуществления |
CN201532077U (zh) * | 2009-11-17 | 2010-07-21 | 华中科技大学 | 基于低温液体制冷的天然气液化装置 |
-
2013
- 2013-11-07 RU RU2013149401/06A patent/RU2538192C1/ru active
- 2013-12-27 WO PCT/RU2013/001177 patent/WO2015069138A2/en active Application Filing
- 2013-12-27 JP JP2015562962A patent/JP6093457B2/ja active Active
- 2013-12-27 CN CN201380070522.2A patent/CN105102913B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58153075A (ja) * | 1982-02-18 | 1983-09-10 | エア−・プロダクツ・アンド・ケミカルス・インコ−ポレ−テツド | メタン−リツチガス流の冷却及び液化方法 |
JPH09506392A (ja) * | 1994-10-05 | 1997-06-24 | アンスティテュ フランセ デュ ペトロル | 天然ガスの液化のための方法と設備 |
US6094937A (en) * | 1996-07-01 | 2000-08-01 | Den Norske Stats Oljeselskap A.S. | Process, plant and overall system for handling and treating a hydrocarbon gas from a petroleum deposit |
JP2012083051A (ja) * | 2010-10-13 | 2012-04-26 | Mitsubishi Heavy Ind Ltd | 液化方法、液化装置およびこれを備える浮体式液化ガス製造設備 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106500459A (zh) * | 2016-10-28 | 2017-03-15 | 银川天佳能源科技股份有限公司 | 一种应用于天然气深冷液化领域的混合制冷工艺 |
CN106500459B (zh) * | 2016-10-28 | 2019-07-30 | 宁夏凯添燃气发展股份有限公司 | 一种应用于天然气深冷液化领域的混合制冷工艺 |
KR20190120776A (ko) * | 2017-03-16 | 2019-10-24 | 퍼블리크노에 악치오네르노에 옵스체스트보 “노바텍” | 에탄에 의한 사전 냉각 및 질소에 의한 보조 냉각으로 고압 사이클에서 천연가스를 액화시키기 위한 극지 캐스케이드 방법 및 그의 실시를 위한 플랜트 |
JP2020514673A (ja) * | 2017-03-16 | 2020-05-21 | ブリクノエ アクツィオネルノエ オブシェストボ ”ノバテック” | 天然ガスを液化するための設備及び方法 |
KR102283088B1 (ko) | 2017-03-16 | 2021-07-30 | 퍼블리크노에 악치오네르노에 옵스체스트보 “노바텍” | 에탄에 의한 사전 냉각 및 질소에 의한 보조 냉각으로 고압 사이클에서 천연가스를 액화시키기 위한 극지 캐스케이드 방법 및 그의 실시를 위한 플랜트 |
US11566840B2 (en) | 2017-03-16 | 2023-01-31 | Publichnoe Aktsionernoe Obshchestvo “NOVATEK” | Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation |
US11774173B2 (en) | 2017-03-16 | 2023-10-03 | Publichnoe Aktsionernoe Obshchestvo “NOVATEK” | Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation |
Also Published As
Publication number | Publication date |
---|---|
WO2015069138A3 (en) | 2015-08-20 |
CN105102913B (zh) | 2017-04-05 |
CN105102913A (zh) | 2015-11-25 |
JP6093457B2 (ja) | 2017-03-08 |
RU2538192C1 (ru) | 2015-01-10 |
WO2015069138A2 (en) | 2015-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6093457B2 (ja) | 天然ガス液化方法とその装置 | |
AU2020202355B2 (en) | Pre-cooling of natural gas by high pressure compression and expansion | |
AU2021201534B2 (en) | Pre-cooling of natural gas by high pressure compression and expansion | |
US10578354B2 (en) | Systems and methods for the production of liquefied nitrogen using liquefied natural gas | |
CA2836628C (en) | Process for liquefaction of natural gas | |
CA2864482C (en) | Method and system for liquefying natural gas using single mixed refrigerant and refrigeration medium | |
CA2856096C (en) | System and method for liquefying natural gas using single mixed refrigerant as refrigeration medium | |
AU2018354587B2 (en) | Natural gas liquefaction by a high pressure expansion process using multiple turboexpander compressors | |
CN107917577B (zh) | 多压力混合的制冷剂冷却方法和系统 | |
JP2020514673A (ja) | 天然ガスを液化するための設備及び方法 | |
JP6415329B2 (ja) | ガス液化装置及びガス液化方法 | |
JP2016128738A5 (ja) | ||
KR20230034899A (ko) | 천연 가스의 액화를 위한 통합 질소 제거 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20161024 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20161101 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170125 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20170207 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170210 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6093457 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |